| 成杰,孙芳萍,崔熙,李自力.某集气站分离器积液包内防腐技术研究[J].装备环境工程,2019,16(8):. CHENG Jie,SUN Fang-ping,CUI Xi,LI Zi-li.Anti-corrosion Technology in Effusion Package of Separators in the Gas Gathering Station[J].Equipment Environmental Engineering,2019,16(8):. |
| 某集气站分离器积液包内防腐技术研究 |
| Anti-corrosion Technology in Effusion Package of Separators in the Gas Gathering Station |
| 投稿时间：2019-03-20 修订日期：2019-04-22 |
| DOI：10.7643/issn.1672-9242.2019.08.010 |
| 中文关键词: 积液包 内腐蚀 防腐涂层 BEASY模拟 牺牲阳极 |
| 英文关键词:effusion package internal corrosion anti-corrosion coating BEASY simulation sacrificial anode |
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| Author | Institution |
| CHENG Jie | Xi′an Changqing Technology Engineering Co., Ltd., Xi′an 710018, China |
| SUN Fang-ping | Xi′an Changqing Technology Engineering Co., Ltd., Xi′an 710018, China |
| CUI Xi | Xi′an Changqing Technology Engineering Co., Ltd., Xi′an 710018, China |
| LI Zi-li | Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety, China University of Petroleum East China, Qingdao 266580, China |
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| 中文摘要: |
| 目的 提高分离器积液包的内防腐性能。方法 首先通过实验对THF8110-I耐湿热重防腐涂料面漆及带锈底漆所构成的防腐涂层进行了外观、耐磨性、硬度、附着力、耐盐雾、耐腐蚀方面的性能检测，以确定其是否符合现场积液包内防腐的需要。然后通过相关规范设计计算所需牺牲阳极的质量及数量，在此基础上借助BEASY软件模拟，得到不同阳极材料在不同布置方式下积液包内壁的电位分布情况，进行材料优选，并分析阳极布置方式对阴极保护效果的影响。最后，模拟得到阳极在焊接和螺栓连接两种不同固定方式下积液包内壁的电位分布情况，以选择合适的固定方式，螺栓连接时，改变阳极与积液包底端的距离，以确定合适的距离。结果 THF8110-I耐湿热重防腐涂料面漆及带锈底漆所构成的防腐涂层各方面性能均达到标准要求，同种布局方式下，铝阳极对积液包形成的保护电位总是比锌阳极更负，而阳极材料相同时，五种布置方式下积液包内壁的电位范围之差不超过1 mV。与焊接相比，螺栓连接且阳极距离积液包底端为150 mm时，积液包内壁的电位分布最为均匀。结论 采用防腐涂层结合牺牲阳极保护的方式提高了积液包内壁的防腐能力。其中，防腐涂层由THF8110-I耐湿热重防腐涂料面漆及带锈底漆所构成，牺牲阳极保护方案中，采取四支铝阳极在积液包底端均布的方式阴极保护效果最好，且阳极与积液包的固定方式选择螺栓连接，阳极与积液包底端的距离为150 mm。 |
| 英文摘要: |
| Objective To improve the anti-corrosion performance of the effusion package under the separator. Methods Firstly, in order to investigate whether the coating composed of THF8110-I wet-heat-resistant heavy-duty anti-corrosive topcoat and primer for rusted steel meets the requirements of the site, the appearance, abrasion resistance, hardness, adhesion, salt spray resistance and corrosion resistance of the coating were tested by experiments. Then the quality and quantity of anode materials were designed and calculated according to relevant standards. On this basis, BEASY software simulation was used to obtain the potential distribution of the inner wall of the effusion package under different layout of different anode materials, so the effect of cathodic protection was analyzed to choose better anode material. The effect of the layout of the anode on cathodic protection was analyzed. Finally, the potential distribution of the inner wall of the effusion package under two different fixation modes of welding and bolt connection was obtained by simulation to choose appropriate fixation modes. And for bolt connection, the distance between the anode and the effusion package was changed to choose suitable distance. Results The performance of the coating composed of THF8110-I wet-heat-resistant heavy-duty anti-corrosive topcoat and primer for rusted steel met the technical requirements on all aspects. Under the same layout, the protective potential of aluminum anode to the effusion package was always more negative than that of zinc anode. When the anode material was the same, the difference of potential range of the inner wall of effusion package under the five layout modes was less than 1 mV. Meanwhile, compared with welding, when the anode was fixed by bolt connection and the distance between the anode and the effusion package was 150 mm, the potential distribution of the inner wall was the most uniform. Conclusion The anti-corrosion ability of the inner wall of the liquid package can be improved by the anti-corrosion coating combined with the sacrificial anode protection. Among them, the coating is composed of THF8110-I wet-heat-resistant heavy-duty anti-corrosive topcoat and primer for rusted steel. And for the sacrificial anode protection scheme, the cathodic protection effect was the best when four aluminum anodes were evenly distributed at the bottom of the effusion package, and the bolt connection is selected as the fixation mode of the anode with the distance between the anode and the bottom end of the effusion package designed to be 150 mm. |
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